Garden fleece is the least glamorous thing you will ever buy for your garden, and quite possibly the most useful. It is a roll of thin white polypropylene that costs less than a bag of compost, and on the right night it is the difference between a healthy crop and a bed of blackened mush. It buys you a few weeks at each end of the season and keeps tender plants like olives and tree ferns alive through a British cold snap. Nothing else in the shed gives you that much insurance for that little money.
Understanding GSM: the only spec that really matters
GSM means grams per square metre. It is simply how much material is in the fleece, and it tracks almost perfectly with how much frost protection you get. Here is the honest version, with the caveat that every figure below assumes the fleece is pegged down properly with no gaps for cold air to sneak under.
| Weight | Protection | Light transmission | Best for |
| 17gsm | Around 2-3°C | Very good | Spring and autumn, seedlings, pest exclusion |
| 30gsm | Around 4-5°C | Moderate | Hard frosts, winter, overwintering veg |
| 35gsm | Around 4-6°C | Moderate | Exposed sites, harsh winters, tearing resistance |
| 50-70gsm | Around 5-6°C | Poor | Short-term winter wraps on dormant plants only |
Two things follow. Fleece does not create heat — it traps the warmth the ground gives up overnight and slows its escape, which is why a couple of degrees is a realistic gain from light fleece and five or six is the ceiling from heavy. Nothing you drape over a plant will save it from a genuine -10°C night, so anyone advertising fleece as frost-proof is overselling it. And the heavier the fleece, the less light gets through: fine for a dormant olive in December, no good for lettuce in March. That is why the honest answer to “which weight should I buy?” is usually “one of each”, and why we have not crowned a single overall winner below.
How we chose
We looked at fleece widely available from UK sellers including Amazon UK, B&Q, and horticultural specialists, and judged it on what matters after a season outdoors: whether the polypropylene is UV-stabilised (unstabilised fleece goes brittle and shreds in a single summer), whether the edges hold up to pegging, how honest the GSM claim looks against the price, and whether the roll size suits a normal garden rather than a commercial nursery. Prices are ballpark figures that move with stock and season — fleece is noticeably cheaper in July than the week after the first frost warning, which is a decent argument for buying it now.
The best garden fleece UK 2026
1. Yuzet frost protection fleece (17gsm) — best budget roll
Yuzet is the name you will see again and again on UK fleece listings, and for good reason: it is cheap, it is everywhere, and for the price it is perfectly decent. The 17gsm version is the classic all-rounder, sold in a range of widths so you can buy a sensible amount rather than a nursery-sized roll. You get roughly 2-3°C of protection, which covers most of what a British garden throws at you between March and November, and enough light gets through to leave it on growing crops for weeks. It is thin material, so expect it to snag and tear by its second season — at this price, an acceptable trade. Buy wider than you think you need; you will want the overlap.
Pros: cheapest way into fleece, good light transmission, widely stocked, genuinely useful as a pest barrier. Cons: tears readily, limited frost protection, not a winter solution. Around £6-15 depending on roll size.
2. Gardening Naturally 30gsm garden fleece — best mid-range roll
Step up to 30gsm and the job changes. This is winter-weight material, good for something in the region of 4-5°C, and it is what you want over the parsnips and leeks when the forecast turns genuinely cold. Gardening Naturally sell it in practical garden-sized quantities rather than the 100-metre rolls the trade suppliers push, which is the main reason it makes this list.
Pros: real frost protection, sensible roll sizes, breathable, lasts several seasons. Cons: cuts light noticeably, overkill for spring sowings. Around £10-20 depending on size.
3. Harrod Horticultural garden fleece (30gsm) — best premium roll
Harrod is where serious veg growers end up, and their 30gsm fleece is a good illustration of what the extra money buys. The material is properly UV-stabilised and the edges are reinforced, which sounds like a small thing until you have watched a cheap roll disintegrate at every peg hole after one windy February.
Expect around £18 for a 10m x 3m piece. That is more than double the budget option per square metre, and the case for it is straightforward: it should give you four or five seasons rather than one or two, which makes it cheaper in the long run and considerably less annoying in the meantime. The 3m width is also genuinely useful, covering a standard bed with enough spare to peg down both sides.
Pros: reinforced edges, properly UV-stabilised, 4-5 season life, useful width. Cons: costs noticeably more up front. Around £18 for 10m x 3m.
4. Haxnicks Easy Fleece Jackets (35gsm) — best for shrubs and tree ferns
Wrapping a standing plant in a roll of fleece is a two-person job that ends in swearing. A jacket solves it. Haxnicks make theirs from 35gsm UV-stabilised polypropylene, and you simply drop it over the plant and pull the integral drawstring tight around the base. One person, one minute.
Available in small, medium and large, with the large at 1.2m x 1.8m covering a decent standing shrub or a young tree fern. The green colourway is worth paying attention to if the plant sits somewhere you look at from the house, because a garden full of white fleece bags in January is a dispiriting sight. Expect around £10 for a medium, a little more for a two-pack of larges.
Pros: one-person job, reusable for years, 35gsm winter weight, discreet green option. Cons: expensive per plant, sizes are fixed. Around £10 upwards depending on size.
5. Selections 70gsm fleece plant jackets, 6-pack — best value multipack
If you have a row of pots to see through winter, buying six jackets in one go at roughly the cost of two premium ones is hard to argue with. Selections sell theirs at 110cm x 90cm with a toggle drawstring at the base, which handles most container shrubs and standard-sized specimens.
The 70gsm figure sounds impressive and is worth a note of caution: heavier is not automatically better. At this weight you are shading the plant substantially, so these are for dormant plants over winter, not for anything you expect to keep growing underneath. Used that way they are excellent, and the extra thickness means they shrug off wind and rain better than lighter jackets.
Pros: six covers for the price of two, substantial material, drawstring base. Cons: too dark for growing plants, stitching is the weak point, one size only. Around £15-20 for a pack of six.
6. B&Q 50gsm heavy-duty garden fleece cover (3.2m x 5m) — best for a quick high-street buy
There is a lot to be said for fleece you can have in your hands this afternoon. When a frost warning lands on a Thursday, a B&Q trip beats a two-day delivery, and their 50gsm 3.2m x 5m cover is a perfectly sound emergency purchase.
At 50gsm this is heavy stuff, comfortably into 5°C-plus territory, and the 3.2m width covers a wide bed or drapes over a decent shrub without fuss. The same caveat applies as with the 70gsm jackets: this is not a leave-it-on-all-spring fleece. It is a get-through-the-cold-snap fleece.
Pros: available on the high street today, wide, genuinely heavy-duty. Cons: mid-range price for basic material, too dark for extended use. Around £12-18.
7. Zipped fleece jacket for olives and palms (70gsm) — best for specimen plants
The specialist option. These are tall, tapered jackets with a full-length zip, sold in sizes like 120cm x 180cm, designed for the plants that cost real money: olive trees, potted palms, tree ferns, standard bays. The zip is the point. It means you can open the jacket on a mild day to let the plant breathe, then close it again when the temperature drops, without wrestling the whole thing off.
At 70gsm they are as warm as fleece gets, and the better ones come in beige or green rather than white, which matters when the plant is a feature by the front door. Expect somewhere around £15-25 for a single jacket, which is a lot for one plant and nothing at all next to the cost of replacing a mature olive.
Pros: zip access is a real advantage, warmest option, discreet colours, protects genuinely valuable plants. Cons: one plant per jacket, needs managing rather than forgetting. Around £15-25.
At a glance
| Product | Weight | Format | Rough price |
| Yuzet frost protection fleece | 17gsm | Roll | £6-15 |
| Gardening Naturally garden fleece | 30gsm | Roll | £10-20 |
| Harrod Horticultural garden fleece | 30gsm | Roll (10m x 3m) | Around £18 |
| Haxnicks Easy Fleece Jackets | 35gsm | Jacket, drawstring | £10+ |
| Selections fleece jackets, 6-pack | 70gsm | Jacket, drawstring | £15-20 |
| B&Q heavy-duty fleece cover | 50gsm | Cover (3.2m x 5m) | £12-18 |
| Zipped specimen jacket | 70gsm | Jacket, zipped | £15-25 |
How to use garden fleece properly
Most fleece failures are not the fleece’s fault. Four things make the difference.
Peg it down, all of it. Cold air is heavy and it flows like water, so a gap at the bottom edge drains your protection away overnight. Use ground pegs, stones, lengths of timber, whatever you have, and go round the whole perimeter. A fleece flapping loose in the wind is doing almost nothing.
Keep it off the foliage where you can. Fleece touching a leaf conducts the cold straight to it, which is how you get frost-burnt tips under an otherwise intact cover. Hoops, canes with upturned pots on top, or a simple frame all work. Draped directly on hardy veg it is fine; draped directly on tender growth it is not.
Let it breathe on mild days. This is the one people skip. A plant sealed under heavy fleece through a damp mild week is at more risk from rot and mildew than it ever was from frost. Fleece is permeable, which helps, but at 50gsm and above you should be opening things up when the weather turns kind.
Frequently asked questions
How many degrees of frost will garden fleece protect against?
Realistically 2-3°C from 17gsm and 4-5°C from 30gsm, assuming it is pegged down with no gaps. Doubling up a layer adds a degree or two, though you lose more light. Nothing you drape over a plant will save it from a severe freeze, and treating fleece as a few degrees of insurance rather than a guarantee will save you a lot of disappointment.
Can I leave fleece on all winter?
Light 17gsm fleece, yes, on hardy crops. Heavy 50gsm-plus fleece, no. The heavier weights cut too much light and hold too much moisture to leave sealed for months. Put them on when the cold arrives, open them up when it passes.
Is fleece better than a cloche?
They do different jobs. A rigid cloche gives more consistent protection, holds shape in wind, and lasts for years, but it costs more, stores badly and covers a small area. Fleece is cheap, folds into nothing and covers a whole bed. Most gardens want both: cloches for early individual crops, fleece for everything else.
Can I use fleece against pests?
Yes, and it is one of the best uses for the light stuff. A 17gsm fleece pegged tight over carrots is an effective carrot fly barrier, and it keeps cabbage whites off brassicas. The catch is that it also keeps pollinators out, so anything that needs insect pollination must be uncovered once it flowers.
Does garden fleece let rain through?
Yes. Spun-bonded polypropylene is permeable to air and water, which is exactly why it beats a plastic sheet for anything longer than one night. You can water straight through it, and rain will reach the soil underneath.
How long does garden fleece last?
A budget roll typically gives one to two seasons before it starts shredding at the pegging points. A UV-stabilised premium roll should manage four or five. Jackets, folded away dry each spring, often last the best part of a decade. The single biggest factor is whether the material is UV-stabilised, so check before you buy.
Our verdict
If you buy one thing, make it a wide roll of 17gsm fleece. It is cheap, it does most of what a garden needs across spring and autumn, and it doubles as a pest barrier. The Yuzet rolls are the obvious value pick. If the worry is one specific plant rather than a bed, buy a jacket instead — the Haxnicks handle standing shrubs without a wrestling match, and a zipped 70gsm jacket is a small price for keeping a mature olive alive through a bad February.
If you protect the same beds every year and you are fed up replacing shredded fleece each spring, spend the extra on the Harrod Horticultural 30gsm. Reinforced edges and proper UV stabilisation turn a one-season consumable into a four-season tool, and the maths works out in your favour.
Buy it now rather than in October. Fleece is cheaper and better stocked in summer, and the first hard frost of the autumn never arrives on a convenient day.
